616045769 has 2 divisors, whose sum is σ = 616045770. Its totient is φ = 616045768.

The previous prime is 616045757. The next prime is 616045783. The reversal of 616045769 is 967540616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485629369 + 130416400 = 22037^2 + 11420^2 .

It is a cyclic number.

It is not a de Polignac number, because 616045769 - 2²⁸ = 347610313 is a prime.

It is a super-2 number, since 2×616045769² = 759024779005602722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616045669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308022884 + 308022885.

It is an arithmetic number, because the mean of its divisors is an integer number (308022885).

Almost surely, 2^616045769 is an apocalyptic number.

It is an amenable number.

616045769 is a deficient number, since it is larger than the sum of its proper divisors (1).

616045769 is an equidigital number, since it uses as much as digits as its factorization.

616045769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 616045769 is about 24820.2693176363. The cubic root of 616045769 is about 850.8852456625.

The spelling of 616045769 in words is "six hundred sixteen million, forty-five thousand, seven hundred sixty-nine".